Add commentary

sbin/entrypoint.sh

@@ -2,6 +2,7 @@
 
 set -eu -o pipefail
 
+# Install root administration user account on first installation
 setup_root_user() {
     set -eu
 
@@ -23,6 +24,7 @@ setup_root_user() {
     fi
 }
 
+# Pass Ansible based environment variables into the Gitea app.ini configuration
 setup_app_ini() {
     set -eu
 
@@ -82,6 +84,7 @@ setup_app_ini() {
     crudini --set "$app_ini" mailer MAILER_TYPE "${SMTP_MAILER_TYPE}"
 }
 
+# Main entrypoint
 main() {
     set -eu